Profile: Mike Dunn's fantasy value lies with him getting his walk rate under control. Strikeouts are his strong point. His 10.5 strikeouts per nine average is good enough for the 24th-highest value among all relievers (226 total) over the past three years (minimum 70 innings pitched). His problems are the walks -- 5.6 per nine, or the eighth-highest total over the same three-year period. Dunn is showing some signs of getting the walks under control. In 2010, he was at 8.0 walks per nine with the Braves. It dropped to 4.4 BB/9 in 2011. With the additional control of the walks, his strikeout rate suffered going from 12.8 in 2010 to 9.7 in 2011. There's little reason to own him going into the 2012 season in all but the deepest of leagues. He will not be closer for Florida with Heath Bell as the closer and Edward Mujica and Leo Nunez / Juan Carlos Oviedo entrenched as the setup men. Also, Dunn will need to have his strikeout-to-walk ratio get closer to the three level to be a viable non-save reliever. (Jeff Zimmerman)

The Quick Opinion: If Dunn can get his fastballs under control, his value will take off. Until then, look elsewhere for a reliever.

Profile: The left-handed Dunn is expected to share Miami's setup duties with newly acquired righty Carter Capps. Dunn had easily his best major-league season last year, setting career-bests in ERA, FAIP, and walks per nine innings. The big issue with Dunn remains his spotty control, however, as last year's 3.72 BB/9 is still mediocre, despite being a marked improvement over his first two full seasons. The 28-year-old still has a walk rate over 5.00 BB/9 for his career. (Scott Strandberg)

The Quick Opinion: Dunn does rack up the strikeouts, as his career mark is just under 10 strikeouts per nine innings. He'll be in line for his fair share of holds, but isn't relevant in fantasy leagues that don't count holds. Even if Steve Cishek loses his hold on the closer's job, expect Capps to be next in line, not Dunn.

Profile: Mike Dunn did more Mike Dunn things in 2014, getting a little better in the process. Being relied upon by the Marlins in crucial situations Dunn rode his velocity and slider combination into the promised land, posting an FIP that was 18% better than league average. Dunn’s a known commodity at this point, and he seems likely to stay the course in 2015. Command can be an issue, as can his production versus right-handed batters, but he’s a relatively safe late innings option that could see save opportunities if a few injuries occur. (Landon Jones)

The Quick Opinion: Managers tend to stay away from left-handed closers, and Dunn probably isn’t going to be an exception, partly due to his command issues, even if they’ve improved. For now, just enjoy the strikeouts and holds he is going to provide.

Profile: Left-handed reliever Mike Dunn had control problems early in his career, and after getting them in check in 2013 and 2014, they returned in a big way in 2015. Dunn walked 4.8 batters per nine last season, which, despite 10.8 strikeouts per nine, ballooned his ERA to 4.50 and his WHIP to 1.39. When his walk rate was in the mid-threes per nine like they were in 2013 and 2014, Dunn was pretty exceptional. In those two seasons, Dunn’s ERA was below 3.00 and his FIP was just above. He was more effective against left-handed batters than right-handed ones, but even versus righties, he allowed a sub-.300 weighted on base average. Last year’s control problems were not isolated to batters of one side. They made his numbers suffer across the board. Even if Dunn hadn’t lost his command in 2015, he would be in for a tough road to earning saves in 2016. A.J. Ramos took the job from the now-departed Steve Cishek early last season and was effective in the role. Meanwhile, Carter Capps returned to the majors mid-season with a new hop-step delivery that turned him into the most effective reliever in baseball. That makes Dunn at best the third option in the Marlins’ bullpen. If the 91-loss Marlins trade some relievers for future value, then Dunn may become interesting in fantasy. For now, there’s just too much in front of him. (Scott Spratt)

The Quick Opinion: After stellar 2013 and 2014 seasons, Mike Dunn took a step back in 2015 because of control problems. For the sake of his saves potential, A.J. Ramos and Carter Capps present an even bigger problem. Unless the Marlins make some trades, Dunn has little value in fantasy.